completly refactored the application
made new storage work as expected
refactored
added topics controler
made stuff more robust
added topic adding
added todos
disabled button of active topic
Merge branch 'feature/moveQuestionsIntoTopics' into develop

* feature/moveQuestionsIntoTopics:
  disabled button of active topic
  added todos
  added topic adding
  made stuff more robust
  added topics controler
  refactored
  made new storage work as expected
  completly refactored the application